Hello, I am the inventor of the noumic device, and, in this video, I explain noumic's primary function in sound mode. The primary function of the device is to monitor some electrical properties of your fingers and hand which correlate to your levels of stress and relaxation, and it, then, provides a moment by moment indication of any changes. Noumic indicates changes in your level of relaxation and stress either by three colored lights or by three different sounds. In sound mode, if a falling pitch sound is made, [noumic's more relaxed beep sound] this indicates that, in the previous three seconds, you have relaxed. [noumic's more relaxed beep sound] If a rising pitch short sound is made, [noumic's less relaxed beep sound] this indicates that, in the previous three seconds, you have got less relaxed, [noumic's less relaxed beep sound] or a little more stressed. Moment by moment changes in relaxation occur almost constantly, but, in sound mode, noumic gives average information for each three second period. This graph shows that, whilst moment by moment relaxation is constantly changing, the average change, in each three second period, is generally increasing. This means that, noumic in sound mode, gives very different information than does noumic working in light mode. Sometimes, there are periods of no change in the average level of relaxation or stress and, during normal activity, these periods of no change are rare; but, as you learn to relax more, these periods of no change begin to occur more often and for longer periods of time. Noumic has a special sound to indicate these periods of no change. The constant pitch sound [noumic's no change beep sound] means that, [noumic's no change beep sound] in the previous three seconds, there has been no change in the average level of your relaxation. With noumic, if you get the no change sound, you know that you are more in control of your body energy levels. It is hard to achieve the no change sound for long periods of time, when you do achieve it, know that you are learning a new skill of gently and naturally calming your body, mind and whole nervous system. Sometimes noumic makes an extra beep sound, and, i will explain what this indicates in another video. For people with good hearing these sounds are loud enough for use even if there is other background noise. You can walk in the street holding the device at your side and still hear it, you can listen to music or sit in a busy place and still hear the information that noumic gives you. The three different primary sounds were chosen so that, after using the device for a while, you will begin to know instinctively what they mean. I invented noumic as a deep relaxation tool. Now, other devices stimulate the mind, they require mind concentration and effort to analyse the information that they give. Noumic's simple sound system of indicating results minimises the mind disturbance it causes; your thinking, analytical mind can relax more which is crucial for the proper deep relaxation that i hope you will achieve. In summary, the lowering pitch sound means [3 x noumic's more relaxed beep sounds] that in the last three seconds you have relaxed or got less stressed; the increasing pitch sound [3 x noumic's less relaxed beep sounds] means that you became more stressed or less relaxed, and the no change in pitch sound [3 x noumic's no change beep sounds] means that your level of relaxation remained unchanged. Try noumic, aim to get the no change sound for long periods of time; for most of you this will be difficult without some practice and perhaps some guidance. In other videos i will explain more and teach you how to relax better, eventually you will be able to control noumic, and by controlling noumic you will have learned naturally how to control your body mind and your nervous system. [noumic's shutting down sound]